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3 years ago

Question is in the link thx!!

Mathematics

1 answer:

Vlad1618 [11]3 years ago

6 0

Hello there!

Surface Area = 4pir^2

First, we need to find our radius, since we have our diameter all we need to do is divide it by 2. That means, 10 divided by 2 equals 5.

Our radius is 5.

Now, we can plug it into the formula.

4(3.14)(5^2)

4(3.14)(25)

4(78.5)

4(78.5) = 314

Now, convert into pi.

314 = 100pi or 100Π

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8. A 140-pound female has three mixed drinks one right after the other.

Sonja [21]

The BAC of the female is an illustration of proportion

The BAC after consuming the three drinks is 0.029w
The BAC three hours after consuming the drinks is 0.087 w

<h3>How to calculate the BAC?</h3>

BAC is calculated using:

BAC = Alcohol consumed/(Body Weight * R)

The weight is given as:

Body weight = 140 lb

Convert to kg

Body weight = 63.5 kg

For female

R = 0.55

So, we have:

BAC = Alcohol/(63.5 * 0.55)

BAC = Alcohol/34.925

BAC = 0.029Alcohol

The weight or volume of the alcohol consumed is given.

So, we represent it with w.

BAC = 0.029w

Hence, the BAC after consuming the three drinks is 0.029w

<h3>How to calculate the BAC after 3 hours?</h3>

We have:

BAC1 = 0.029w

Time (t) = 3 hours

The BAC after 3 hours is

BAC = BAC1 * (t - 0.015)

So, we have:

BAC = 0.029w * (3 - 0.015)

Evaluate the product

BAC = 0.087w

Hence, the BAC three hours after consuming the drinks is 0.087 w

Read more about BAC at:

brainly.com/question/1781657

7 0

3 years ago

Hundred Metal Spheres with a radius of 4cm each are melted. The melted solution is filled into a cube with a base area of 16cm x

Anna007 [38]

Answer:

Height = 167.47 cm

Step-by-step explanation:

volume of one sphere = 4/3πr³ = 4/3(3.14)(4³) = 267.9467 cm³

267.9467 cm³ x 100 spheres = 26794.67 cm³

volume of cube = L x W x H

26794.67 = 16 x 10 x H

H = 167.47 cm

4 0

3 years ago

In the xy-plane, the graph of function f(x) has zeros at −5, −2, and 2. Write the polynomial function.

Alona [7]

Answer:

$f(x) = x^3 +5x^2-4x-20$

Step-by-step explanation:

Given

$Zeros: -5,-2,2$

Required

The polynomial function

If a function has a, b and c as its zeros, the function is:

$f(x) = (x - a)(x - b)(x - c)$

So, we have:

$Zeros: -5,-2,2$

$f(x) = (x - (-5))(x - (-2))(x - 2)$

Open the inner brackets

$f(x) = (x +5)(x +2)(x - 2)$

Expand the difference of two squares

$f(x) = (x +5)(x^2 - 4)$

Expand

$f(x) = x^3 +5x^2-4x-20$

4 0

3 years ago

B * In Using the expression above, choose the correct answers for the new balance and the amount of interest earned in the follo

Bad White [126]

In 8 years, you will have $1,573.29 thus $850-$1573.29 = $ <span>723.29 in interest</span>

4 0

3 years ago

Read 2 more answers

1) What is 30% of 60?

e-lub [12.9K]

Answer:

30% of 60 is <em><u>18</u></em>.

Hope this helps!

7 0

4 years ago

Read 2 more answers